Which of the Following Would Be the Likely Result If

Which of the following would be the likely result if Sam sues Trudy for the $40 she owes him for the book?

A) Sam will win because Trudy cannot avoid her obligations through a delegation.
B) Sam will win but only because he was not aware of the assignment.
C) Sam will win but only because the contract was for an amount under $1,000.
D) Sam will win only if Betty cannot be found for service of process.
E) Trudy will win because she delegated the duty of payment to Betty.